Filters
US8420282B2 · kind B2 · utility
0Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2009 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Apr 3, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for producing a color filter, comprising: applying to a substrate at least one diacetylene capable of undergoing a light-activated color change reaction, and exposing the substrate to light thereby causing the exposed regions of the substrate to change color. The invention also provides devices comprising colored filters such as liquid crystal displays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.